39x^2-482x-2464=0

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Solution for 39x^2-482x-2464=0 equation:


Simplifying
39x2 + -482x + -2464 = 0

Reorder the terms:
-2464 + -482x + 39x2 = 0

Solving
-2464 + -482x + 39x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
39 the coefficient of the squared term: 

Divide each side by '39'.
-63.17948718 + -12.35897436x + x2 = 0

Move the constant term to the right:

Add '63.17948718' to each side of the equation.
-63.17948718 + -12.35897436x + 63.17948718 + x2 = 0 + 63.17948718

Reorder the terms:
-63.17948718 + 63.17948718 + -12.35897436x + x2 = 0 + 63.17948718

Combine like terms: -63.17948718 + 63.17948718 = 0.00000000
0.00000000 + -12.35897436x + x2 = 0 + 63.17948718
-12.35897436x + x2 = 0 + 63.17948718

Combine like terms: 0 + 63.17948718 = 63.17948718
-12.35897436x + x2 = 63.17948718

The x term is -12.35897436x.  Take half its coefficient (-6.17948718).
Square it (38.18606181) and add it to both sides.

Add '38.18606181' to each side of the equation.
-12.35897436x + 38.18606181 + x2 = 63.17948718 + 38.18606181

Reorder the terms:
38.18606181 + -12.35897436x + x2 = 63.17948718 + 38.18606181

Combine like terms: 63.17948718 + 38.18606181 = 101.36554899
38.18606181 + -12.35897436x + x2 = 101.36554899

Factor a perfect square on the left side:
(x + -6.17948718)(x + -6.17948718) = 101.36554899

Calculate the square root of the right side: 10.068045937

Break this problem into two subproblems by setting 
(x + -6.17948718) equal to 10.068045937 and -10.068045937.

Subproblem 1

x + -6.17948718 = 10.068045937 Simplifying x + -6.17948718 = 10.068045937 Reorder the terms: -6.17948718 + x = 10.068045937 Solving -6.17948718 + x = 10.068045937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.17948718' to each side of the equation. -6.17948718 + 6.17948718 + x = 10.068045937 + 6.17948718 Combine like terms: -6.17948718 + 6.17948718 = 0.00000000 0.00000000 + x = 10.068045937 + 6.17948718 x = 10.068045937 + 6.17948718 Combine like terms: 10.068045937 + 6.17948718 = 16.247533117 x = 16.247533117 Simplifying x = 16.247533117

Subproblem 2

x + -6.17948718 = -10.068045937 Simplifying x + -6.17948718 = -10.068045937 Reorder the terms: -6.17948718 + x = -10.068045937 Solving -6.17948718 + x = -10.068045937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.17948718' to each side of the equation. -6.17948718 + 6.17948718 + x = -10.068045937 + 6.17948718 Combine like terms: -6.17948718 + 6.17948718 = 0.00000000 0.00000000 + x = -10.068045937 + 6.17948718 x = -10.068045937 + 6.17948718 Combine like terms: -10.068045937 + 6.17948718 = -3.888558757 x = -3.888558757 Simplifying x = -3.888558757

Solution

The solution to the problem is based on the solutions from the subproblems. x = {16.247533117, -3.888558757}

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